759,737 research outputs found

    Risk-surprises management in the projects of re-engineering building structures

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    Під реінжинірингом будівельних споруд розуміли процеси перебудови або добудови, в яких здійснюється відхилення від первинного креслення споруди із додаванням нових елементів, та створення технології виготовлення останніх. Розроблено систему «REBUS» підтримки проектних рішень при реінжинірингу будівельних споруд. Проведено випробування системи «REBUS» в рамках управління проектом реінжинірингу промислового об’єкта із позитивним технічним ефектом.Under the re-engineering of building structures understand the processes of adjustment or completion, in which the deviation from the initial drawing facilities with the addition of new elements, and the creation of manufacturing technology of the past. The aim of this work was to improve the effectiveness of project management of re-engineering construction by reducing time and cost of design works, as well as improving the product quality of the project through the development and implementation of support systems for design decision making in the planning stages of content projects, and response to project risks. Developed a system of "REBUS" support of design decisions in the re-engineering of building structures. Tested system "REBUS" in the framework of project management reengineering of an industrial facility with a positive technical effect. Tests have shown that the use of "REBUS" has achieved the following technical and economic results: with respect to the interaction with the turbulent environment: developed standards of operations of the management of the project as a response to changes in planned early in the project functional areas of project activities; in respect of the project management process: • reduced installation costs 1.3 times; • reduced the term of the lease of warehouse space by 18 %; • increased speed of information processing in the logistics Department 7 %; – in terms of the product of the project: • insolation is the most darkened areas of the room increased by almost 40 %; total costs for heating of the object decreased to 26.6 % while maintaining the average temperature in the premises;• the amount of carbon monoxide (CO2) in the air in the internal volume of construction decreased by 27.1 %

    Usage habits of business information system in Hungary

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    The IT functions of the companies can be executed in different ways in-house solution, outsourcing, in sourcing, formation a spin-off company. Predominantly this function is provided within the company in Hungary. The larger a company is; it is more likely that a separate IT manager will be entrusted for the supervision of IT functions. Only a very small number of small-sized enterprises said that they paid special attention to formulating an IT strategy, while it was not considered important by microenterprises at all

    Wood Products and Carbon Storage: Can Increased Production Help Solve the Climate Crisis?

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    This report draws on a variety of sources to illuminate the greenhouse gas impacts of wood products and wood biomass fuels throughout their life-cycles. While detailed analyses are rare, the picture is complete enough to show the variability of the processing path followed by different types of trees in various parts of the country. Taking the entire life-cycle of these products into account, it becomes clear that an increased use of wood fuels and lumber will have very little net effect on climate change. To the contrary, the impact is as likely to be negative as positive.The report also takes a closer look at the use of forest-carbon offsets in voluntary or regulatory programs. Because such offsets are expected to balance emissions from other sources, it is important that the additional carbon sequestration be real. This document outlines several criteria for carbon offset standards to account for the full effects of harvested wood carbon

    Collaborative signal and information processing for target detection with heterogeneous sensor networks

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    In this paper, an approach for target detection and acquisition with heterogeneous sensor networks through strategic resource allocation and coordination is presented. Based on sensor management and collaborative signal and information processing, low-capacity low-cost sensors are strategically deployed to guide and cue scarce high performance sensors in the network to improve the data quality, with which the mission is eventually completed more efficiently with lower cost. We focus on the problem of designing such a network system in which issues of resource selection and allocation, system behaviour and capacity, target behaviour and patterns, the environment, and multiple constraints such as the cost must be addressed simultaneously. Simulation results offer significant insight into sensor selection and network operation, and demonstrate the great benefits introduced by guided search in an application of hunting down and capturing hostile vehicles on the battlefield

    Trying to break new ground in aerial archaeology

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    Aerial reconnaissance continues to be a vital tool for landscape-oriented archaeological research. Although a variety of remote sensing platforms operate within the earth’s atmosphere, the majority of aerial archaeological information is still derived from oblique photographs collected during observer-directed reconnaissance flights, a prospection approach which has dominated archaeological aerial survey for the past century. The resulting highly biased imagery is generally catalogued in sub-optimal (spatial) databases, if at all, after which a small selection of images is orthorectified and interpreted. For decades, this has been the standard approach. Although many innovations, including digital cameras, inertial units, photogrammetry and computer vision algorithms, geographic(al) information systems and computing power have emerged, their potential has not yet been fully exploited in order to re-invent and highly optimise this crucial branch of landscape archaeology. The authors argue that a fundamental change is needed to transform the way aerial archaeologists approach data acquisition and image processing. By addressing the very core concepts of geographically biased aerial archaeological photographs and proposing new imaging technologies, data handling methods and processing procedures, this paper gives a personal opinion on how the methodological components of aerial archaeology, and specifically aerial archaeological photography, should evolve during the next decade if developing a more reliable record of our past is to be our central aim. In this paper, a possible practical solution is illustrated by outlining a turnkey aerial prospection system for total coverage survey together with a semi-automated back-end pipeline that takes care of photograph correction and image enhancement as well as the management and interpretative mapping of the resulting data products. In this way, the proposed system addresses one of many bias issues in archaeological research: the bias we impart to the visual record as a result of selective coverage. While the total coverage approach outlined here may not altogether eliminate survey bias, it can vastly increase the amount of useful information captured during a single reconnaissance flight while mitigating the discriminating effects of observer-based, on-the-fly target selection. Furthermore, the information contained in this paper should make it clear that with current technology it is feasible to do so. This can radically alter the basis for aerial prospection and move landscape archaeology forward, beyond the inherently biased patterns that are currently created by airborne archaeological prospection
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